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. 1997 Aug 5;94(16):8697–8701. doi: 10.1073/pnas.94.16.8697

Table 1.

Equilibrium association constants of the reactions among D1.3, AF14, and AF52 with the anti-Id E5.2 and the antigen HEL

mAb, Fab Ka, FabE5.2, M−1 Ka, HEL, M−1
D1.3 1.4 × 109 1.0 × 108
AF14 1.0 × 109 1.8 × 106 (1.6 × 106)
AF52 2.4 × 107 3.8 × 106

All values were obtained by plasmon resonance techniques except the one in parentheses, which was obtained by ultracentrifugal sedimentation equilibrium analysis. See Materials and Methods